Re: overcoupling

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: FutureT-at-aol-dot-com 

In a message dated 9/24/03 10:09:41 AM Eastern Daylight Time, 
tesla-at-pupman-dot-com writes:

>be 4 15/30 nst's with
>PFC,mains filter and Terry filter all on a HEAVY but removable Powerpak
>,spark gap is a washing machine motor that I modified to work as synchronous
>at 1800 rpm with a propellor gap using 1/8 tungsten electrodes (4 stationary
>posts for 120bps).
>
>Main Cap will be .045 uF (3 strings of 10 .015uF Geek caps) Is this a good
>size for a SRSG ?


Lance,

I can see you're gaining considerable experience with your coils.  The
0.045uF may be a little small for SRSG LTR operation, but it may work
out fine.  I can't be sure.  Some of the NST's are touchy.


>Primary is 16 turns  on 5/8" spacing 14" ID. 38" OD.
>
>Secondary is 12.5" PVC sewerpipe turned down to 12.25" ....Could the bell
>end be used as a sheild between the Pri. and Sec. to prevent  Pri. to Sec.
>arcing ?........winding is 22Ga. 36" legnth with multiple heavy coats of
>poyurethane.

         The problem is that PVC is not really a good insulator.  I think 
it's just
best to keep the coupling at a suitable degree.


>Any suggestions for a toroid size ?


A 9" x 30" toroid may be good.

John



>Lance
>
>PS there is a safety gap too.
>